COIL AND MANUFACTURING METHOD THEREOF

PROBLEM TO BE SOLVED: To achieve that a coil conductor has a smaller circumference length, a lower resistance, and higher inductance by using a high permeability magnetic material, such as an amorphous material, for a core.SOLUTION: A coil includes: first and second cores (4-1, 4-2) made of a high permeability magnetic material, which respectively have through holes (12) that permit passage of coil conductor pieces and are disposed by making the through holes parallel to each other; cases (core cases 6-1 and 6-2) which respectively accommodate therein the first core and the second core; and a coil conductor that circulates between the first and second cores by coupling an end portion of at least one of the coil conductor pieces (8-1, 8-2) respectively passing through the through holes (12) of the first and second cores to an outside of the cases.SELECTED DRAWING: Figure 1 【課題】コアにたとえば、アモルファス材料などの高透磁率材料を使用し、コイル導体の周回長の短縮化および低抵抗化とともに高インダクタンス化を図る。【解決手段】高透磁率材料で形成されてコイル導体片を貫通させる貫通孔を備え、各貫通孔を平行にして配置された第１および第２のコア（４−１、４−２）と、前記第１のコアおよび前記第２のコアを収納するケース（コアケース６−１、６−２）と、前記第１のコアおよび前記第２のコアの貫通孔（１２）を貫通する複数のコイル導体片（８−１、８−２）の少なくとも一方の端部を前記ケースの外側で連結して前記第１および第２のコア間を周回するコイル導体とを備える。【選択図】図１